Researchers at the Paul Scherrer Institute PSI have studied for the first time how chemical reactions in clouds can influence the global climate. They found that isoprene, the dominant non-methane ...

Nga Lee “Sally” Ng leads a new study investigating the formation and properties of secondary organic aerosol from the nitrate radical oxidation of two common monoterpenes, compounds found in many ...

An atmospheric scientist at The University of Alabama in Huntsville (UAH), a part of The University of Alabama System, has helped uncover a previously unknown chemical pathway that plays a major role ...

Turbulent air in the atmosphere affects how cloud droplets form. New research in a cloud chamber changes the way clouds, and therefore climate, are modeled. Chat with an atmospheric scientist for more ...

Scientists have sussed out a new source for the seeds of clouds. When the stratospheric layer of Earth’s atmosphere dips a toe into the underlying troposphere, the resulting chemical mixture becomes a ...

Why are there so many newly formed aerosol particles in the upper troposphere over tropical regions such as the Amazon? Tropical forests play an important role in global climate regulation. However, ...

Air pollution from secondary organic aerosols (SOA) has now become a greater problem in Chinese cities since 2013 because regulations have successfully reduced fine particulate matter (PM 2.5) emitted ...

Urban landscapes and man-made aerosols have the potential to accelerate the formation of hail storms, according to a recent study by the U.S. Department of Energy’s Pacific Northwest National ...

The past half-century has seen remarkable improvements in air quality in many parts of the world, thanks largely to legislation like the U.S. Clean Air Act. Efforts like these took aim at pollutants ...

Fossil fuels are rapidly warming the planet, and the aerosols from their combustion kill millions of people each year. So we need to rapidly decarbonize. But in an ironic twist, those aerosols ...